myeclipse

package test;import java.text.DecimalFormat;import java.text.NumberFormat;import java.text.**DateFormat;import java.util.Calendar;public class abcd {public static final void main(String[] args) {   String id = "改为你的注册ID";///"改为你的注册ID";   String num = "887";//"改为 1-999 的整数";   System.out.println(getSerial(id, "100", num, false));}public static String getSerial(String userId, String version,    String licenseNum, boolean selected) {   Calendar cal = Calendar.getInstance();   cal.add(1, 3);   cal.add(6, -1);   NumberFormat nf = new DecimalFormat("000");   licenseNum = nf.format(Integer.valueOf(licenseNum));   String verTime = selected ? (new StringBuffer("-")).append(     (new **DateFormat("yyMMdd")).format(cal.getTime())).append(     "0").toString() : "-1012310";   String type = "YE3MB-";   String need = (new StringBuffer(String.valueOf(userId.substring(0, 1))))     .append(type).append(version).append(licenseNum)     .append(verTime).toString();   String dx = (new StringBuffer(String.valueOf(need)))     .append(       "Decompiling this copyrighted software is a violation of both your license agreementand the Digital Millenium Copyright Act of 1998 (http://www.loc.gov/copyright/legislation/dmca.pdf).Under section 1204 of the DMCA, penalties range up to a $500,000 fine or up to five yearsimprisonment for a first offense. Think about it; pay for a license, avoid prosecution, and feelbetter about yourself.") .append(userId).toString();   int suf = decode(dx);   String code = (new StringBuffer(String.valueOf(need))).append(     String.valueOf(suf)).toString();   return change(code);}private static int decode(String s) {   int i = 0;   char ac[] = s.toCharArray();   int j = 0;   for (int k = ac.length; j < k; j++)    i = 31 * i + ac[j];   return Math.abs(i);}private static String change(String s) {   byte abyte0[] = s.getBytes();   char ac[] = new char[s.length()];   int i = 0;   for (int k = abyte0.length; i < k; i++) {    int j = abyte0;    if (j >= 48 && j <= 57)     j = ((j - 48) + 5) % 10 + 48;    else if (j >= 65 && j <= 90)     j = ((j - 65) + 13) % 26 + 65;    else if (j >= 97 && j <= 122)     j = ((j - 97) + 13) % 26 + 97;    ac = (char) j;   }   return String.valueOf(ac);}}